Locomotive fire-box arch



Dec. 20, 1927. 1,653,084

' P. BUBELIS LOCOMOTIVE FIRE BOX ARCH Filed May 1, 1925 2 Sheets-Sheet l gwvwntoz alike: nu

Dec. 20, 1927.

P. BUBELIS LOCOMOTIVE FIRE BOX ARCH 2 Sheets-Sheet 2 Filed May 1, 1925 Patented Dec. 20, 1927.

{was was i an PETER 'BU nLIs, or ron'rs monrrr, new nleiirrsnrnn.

'; nocomorrrvn FIRE-BOX, non.

' Application 'filed May ,1,

I This" invention relates to improved arch for installation 'in the firebox} of a 1 comotive, andit. has more particular reference to a metallic; arch'ofhollow construction provided to permitthe heatedboiler water to be circulated therethrough. 1

The invention is characterized by the provision of an arch which is made'up; o-fdupli- 'cate half sections spaced apart and forced .in-

' to tight. contact [with the 1 fire box: :wall

7 culating water must beobtained from the through the use 'ofa parting wedge. g F

It follows alsothat inasmuch as the cirwater space around the fire boxand circu- Iatedback to that space,i'an advantage is derived from the use of novelmeans for pro viding fluid tight connection of the circulat- "ing tubes with the walls defining saidwater space. T

The specific details constituting thenovel arrangement of parts will become apparent during the course of the followingdescrip-j tion of the drawings.

In the accompanying drawings forming a part of this application, and in whichlike numerals are employed to designate like parts throughout the same:

Figure 1 is a vertical fragmentary section of a locomotive fire box showing portions. of the fiues and showing the improved arch and circulating means in association therewith. V a

' Figure 2 is an enlarged cross section taken through the arch, the section being made approximately upon the plane of the line 22 of Figure 1. Figure 3 is a horizontal section through v the upper portion of the fire box looking downwardly, and showing the improved construction in top plan.

Figure 4: is an enlarged detail section of a packing gland, and means for connecting the same in place.

Referring to the drawings in detail. the reference character 1 designates, as a whole, a portion of a locomotive showing more particularly the construction of the fire box 2.

As is usual, this fire box is surrounded, by a water space 3 defined by spaced parallel inner and outer walls. The inner and outer side walls are represented by the reference characters 4 and 5 respectively, the inner and outer rear walls by 6 and 7 respectively, and the front walls by 8 and 9 respectively. The wall 6 is sometimes designated as the flue sheet in that it supports the usual fiues 10,

1925.. Serial 110527320 1 the wall 7 being also known as the throat I sheet. These, parts however constitute a portion of the usual locomotive'zboileri construction, andfform no part of the present invention. i

" The inventionias-beforeintimated comprises an improved arch for-location in'the firebox '2. This archis intended to supplant the cu'stomary brick. arch frequently used. In carrying. outthe' invention, the

with'lugs 11 upon which the, arch sections,

designated generally by the reference character '12 are adapted to rest. Thearch is composed of a pair ofsduplicate halfgsecsidewalls l of the fire box are. provided tions13, thesebeing of hollow formation,

and beingformedflof metal sheetsapprm prlatelyweld'ed and riveted-together, Each section embodies. a substantially 1 horizontal portion, and "an upwardly ofiset portion.

Also the opposedlongitudinal sides of the half sections, which "are spaced apart, are inclined to provide for reception. of a parting wedge 14. Obviously, when this wedge is forced between the sections, they are pr es'sedinto tight contact with the walls): of

- the fire box.

The heated water from the water space 3. 15 adapted to be circulated through this hollow arch and in accomplishing this, I make use of a forward pairof pipes 15 and a rear pair of pipes 16,*the-last named pipes being comparatively short; 1 The inner ends of the pipes are connected to thearch to provide fluid tight joints and at the points of connections areU-shaped clips 17 riveted to the arch sections. As shown in Figure 4:,the i outer end of each pipe is fitted into a packing 3 gland 18 which is tapped into the adjacent wall, for instance the flue sheet '6.- This gland includes an outer shell '19 internally screw threaded .to receive a pipe retaining nipple 20. and a centrally apertured screw threaded disc 21. .It is provided at: its enpersons skilled in the art to which the invention relates to obtain'a clear understanding of the same, and to appreciate the advantages derived from a construction'of thiskind. Therefore, a more lengthy description is thought unnecessary.

' "While the preferred embodiment of the invention has been shown and described it is to be understood that minor changes coming within the field of invention claimed may be resorted to if desired. I

Having thus described the invention, what I claim as new is':

1. In combination, a fire box, water legs at opposite sides of the'same, a water container in the fire box and comprising hollow spaced sections the outer-portions of which are disposed on supports on opposite walls of the fire box and theinner edges of which are beveled, and a downwardly tapered wedgeinterposed between said beveled edges of the sections and extending throughout the length of said sections and arranged with its upper and lower sides flush with the upper andlower sides of the hollow sections, and

i conduits at opposite ends of and complemen- 7 tary to each section;-said conduits connecting the sections with the water legs and being open at their ends to the interiors of the container or hollow spaced sections and the interiors of the water legs.

2..In combination, a pair of spaced walls defining therebetween a water circulating space, a tube extending through an aperture nular meansv secured in said gland and adapted to retain the tube.

3. In a structure of the class described, a packing gland threaded and thereby'adapted to be tapped into a screw threaded opening in a supporting wall, and a sleeve, said gland and sleeve being provided with cooperating c'onnecting'flanges and said sleeve being closed at its outer end by a removable cap and being provided between its ends with water circulating openings.

In testimony whereof I afiix my signature.

' PETER UBELis.

packing in the gland and about 

